The human desire to create ever bigger and more impressive structures is insatiable. The pyramids of Ancient Egypt, the Great Wall of China, and the Burj Khalifa in Dubai - now the tallest edifice in the world at over 828 meters (2,722 ft) - are a consequence of pushing engineering to its limits. But huge buildings aren’t just monuments to human ambition: they might also hold the key to humanity’s progress in the space-faring age.
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